电芬顿氧化法处理酸性橙Ⅱ模拟废水  

Treatment of Acid Orange Ⅱ Simulated Wastewater by Electro-Fenton Oxidation

作　　者：廉雨[1,2] 赖波[3,2] 周岳溪[2] 周继红[1] 庞翠翠[1,2] 

机构地区：[1]河北工程大学城市建设学院,河北邯郸056038 [2]中国环境科学研究院水污染控制技术研究中心,北京100012 [3]四川大学建筑与环境学院,四川成都610065

出　　处：《环境科学研究》2012年第3期328-332,共5页Research of Environmental Sciences

基　　金：国家水体污染控制与治理科技重大专项(2008ZX07207-004)

摘　　要：为分解酸性橙Ⅱ分子结构中的偶氮键和萘环,提高酸性橙Ⅱ废水的可生化性,采用电芬顿氧化法处理质量浓度为300mg/L的酸性橙Ⅱ模拟废水,研究了不同电流密度对电芬顿系统处理效率的影响.结果表明,在不同电流密度条件下,模拟废水ρ(CODCr)由377.8 mg/L快速降至276.9 mg/L时,消耗的电量分别为300 C(10.0 mA/cm2)、810 C(7.5 mA/cm2)、2 190 C(5.0mA/cm2)和1 710 C(2.5 mA/cm2),说明在高电流密度条件下,电芬顿反应器能够高效快速地分解酸性橙Ⅱ,同时消耗最低的电量.电芬顿系统处理出水的紫外可见光谱检测结果表明,在较高电流密度(7.5 mA/cm2)条件下,电芬顿系统仅需要10 min就能够基本完全分解酸性橙Ⅱ分子结构中的偶氮键和萘环,提高废水的可生化性.In order to break up the azo bond and naphthalene ring in the Acid Orange II molecule, and to improve the biodegradability of Orange ][ wastewater, 300 mg/L Orange ]] simulated wastewater was treated by Eleetro-Fenton oxidation, and the effects of different current densities on the treatment efficiency were studied. The results showed that under different current density conditions, the CODcr mass concentration of the simulated wastewater rapidly decreased from 377.8 mg/L to 276.9 mg/L, with power consumption of 300 C （10.0 mA/cm2） , 810 C （7.5 mA/cm2） , 2190 C （5.0 mA/em2）, and 1710 C （2.5 mA/cm2）, respectively. It could be seen that under the high current density conditions, the Acid Orange ]] bonds could be broken up rapidly and efficiently with the lowest power consumption by the Eleetro-Fenton reactor. The UV-visible spectrum of the effluent showed that under the high current density （7.5 mA/em2） condition, the azo bond and naphthalene ring of Acid Orange I] could be completely broken down in 10 min, and the biodegradability of the wastewater was efficiently improved.

关 键 词：电芬顿 酸性橙II 紫外可见光谱 偶氮键 萘环 

分 类 号：X791[环境科学与工程—环境工程]